Alloy of manganese and titanium and method of producing the same.



UNITED STATES PATENT OFFICE.

AUGUSTE J. RossI, or NIAGARA FALLS, NEW YORK, ASSIGNOR TO THE TITANIUMALLOY MANUFACTURING"COMPANY, OF NEW YORK,

MAINE.

ALLOY OF MANGANESE AND TITANIUM AND METHOD OF PRODUCING THE SAME.

Specification of Letters Patent.

Patented Apr. 16, 1912.

No Drawing. Original application filed May f1, 1909, Serial No. 493,857.Divided and this application filed May 18, 1910.

Producing the Same, of which the following 1s a specification, mypresent application for patent being a division of my pendingapplication, Serial No. 493,857, filed May 4, 1909, which is a divisionof Serial Nofsoaaso, filed March 22, 1907, now Patent No. 935,863.

My present invention relates, in part, to improvements in, and processesfor producing, alloys, including those of copper with other metals, suchas tin, zinc, or manganese, the latter being designated as manganesebronzes. A p

The copper of commerce contains impurities, and ithas been found thatadmixtures, or alloys therewith of certain metals, or elements, such astitanium, produce on such copper, for casting or other purposes, certainbeneficial results, for instance reduction, diminution, or evenelimination of undesired compounds or gases present in its molten state,and which cause defects such as pin-holes. tending to render suchcastings unsound and useless. cial copper itself, as say in the form ofcast-- ings, has been thus purified and improved,

the introduction thereinto, in its remolten state, of manganese toproduce special bronzes has hitherto produced in the bath a recurrenceof conditions unfavorable to the copper and consequent unsoundness, ifnot uselessness, of the resulting bronzes. Thus for instance, into thealloy, in molten state, compounds have been imported and"resulting'gasesdeveloped and occluded, which owing to their maleficent effect,especially upon the copper content, have injuriously affected the alloyproduced, even in cases in which the copper itself had been, as abovestated, previously purified.

My tests have demonstrated that by introducing into the bath of moltencopper employed in production of the bronze alloys referred to,manganese, itself previously improved by alloying with titanium, asatisfactory condition of the resulting alloy is While commer- SerialNo. 561,934.

promoted. In addition to its utility for the specific purpose aforesaid,z. e. in making alloys of copper with manganese, or other metals, mynovel alloy of manganese and titanium is also useful when comelted insmall quantities with manganese to purify and improve the latter, andalso in other employments in the arts. As titanium exists rarely, ifever, isolated in metallic state, but only as alloyed with other metal,principally iron, or sometimes copper, and none of these alloys serve mypurpose, it is preferable to derive the required titanium from its oxid.I

The production of alloys comprising manganese and titanium may bepracticed by my present invention as follows, viz:- ()xld ofmanganese,oxid of titanium and carbon are mixed together as for instance, per theformulae Said mixture, preferably together with some manganese, ischarged into one of the now well-known forms of so-called electricfurnaces, such for example as illustrated and described in LettersPatent No. 802,9t1, granted tome October 24th 1905, and the currentturned on. This will result in production of a bath of molten manganese,and

the current being continued, the titanium N. Y., A CORPORATION OF due,under the conditions of industrial ,practice, to the diflicult-y ofexactly proportioning the reducing agent so as to merely satisfychemical afiinity therefor of the oxygen present without leaving someuncombined carbon. This circumstance is of no detriment to the productfor many purposes, but will prove of advantage in certain special usesthereof.

Manganiferous iron ore may be substituted for the oxid of manganese asabove described, enough'carbon bem in such case supplied to reduce theoxid 0 iron of such ore, as well as the oxid of manganese and theoxid-of titanium accordingto the formula In such case addition to thebath of the resulting molten iron assists the action of the moltenmanganese in facilitating the reduction of the titanic acid, and theresulting alloy comprising iron as well as titanium and manganese isadvantageous for special purposes.

The proportions of the ingredients used in the charge will be variedaccording to the percentage of the respective metals desired in thealloy according to the formulas above given and as experience and testin each case will readily demonstrate to those skilled in themetallurgical art.

What I claim as new and desire to secure by Letters Patent is thefollowing, viz

1. The method of producing the binary comprises reducing titaniumoxid-by carbon in a bath of molten manganese, substantially asdescribed. I

3. As a new article an alloy, or compound, consisting essentially oftitanium and manganese alloyed together and containing also some carbon.

4. As a new article an alloy, or compound, consisting essentially oftitanium and manganese alloyed together and containing also carbon inexcess of 1% AUGUSTE J. ROSSI.

Witnesses:

WALTER D. EDMONDS, PHILIP C. PEoK.

